White stuff - what is it

[asylumdown]

Originally Posted by Cal_stir

I don't think you should be dosing liquid carbon with bio pellets. I would wean the tank off the liquids and just run the pellets.

+1 There's such a thing as too much carbon dosing. if you're going to start going the zeo method with zeolites and all I would also recommend halting the biopellets